Demethylspheroidene O-methyltransferase

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Demethylspheroidene O-methyltransferase
Demethylspheroidene O-methyltransferase
Identifiers
EC no.	2.1.1.210
Databases
IntEnz	IntEnz view
BRENDA	BRENDA entry
ExPASy	NiceZyme view
KEGG	KEGG entry
MetaCyc	metabolic pathway
PRIAM	profile
PDB structures	RCSB PDB PDBe PDBsum
PMC
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PubMed	articles
NCBI	proteins

Demethylspheroidene O-methyltransferase (EC 2.1.1.210, 1-hydroxycarotenoid O-methylase, 1-hydroxycarotenoid methylase, 1-HO-carotenoid methylase, CrtF) is an enzyme with systematic name S-adenosyl-L-methionine:demethylspheroidene O-methyltransferase.^[1]^[2]^[3] This enzyme catalyses the following chemical reaction

S-adenosyl-L-methionine + demethylspheroidene

\rightleftharpoons

S-adenosyl-L-homocysteine + spheroidene

In Rhodopseudomonas capsulata and Rubrivivax gelatinosus the enzyme is involved in biosynthesis of spheroidene.

References

^ Badenhop F, Steiger S, Sandmann M, Sandmann G (May 2003). "Expression and biochemical characterization of the 1-HO-carotenoid methylase CrtF from Rhodobacter capsulatus". FEMS Microbiology Letters. 222 (2): 237–42. doi:10.1016/s0378-1097(03)00302-1. PMID 12770713.
^ Pinta V, Ouchane S, Picaud M, Takaichi S, Astier C, Reiss-Husson F (May 2003). "Characterization of unusual hydroxy- and ketocarotenoids in Rubrivivax gelatinosus: involvement of enzyme CrtF or CrtA". Archives of Microbiology. 179 (5): 354–62. doi:10.1007/s00203-003-0538-3. PMID 12664193. S2CID 30048505.
^ Scolnik PA, Walker MA, Marrs BL (March 1980). "Biosynthesis of carotenoids derived from neurosporene in Rhodopseudomonas capsulata". The Journal of Biological Chemistry. 255 (6): 2427–32. doi:10.1016/S0021-9258(19)85909-4. PMID 7358679.

External links

Demethylspheroidene+O-methyltransferase at the U.S. National Library of Medicine Medical Subject Headings (MeSH)

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[1] Badenhop F, Steiger S, Sandmann M, Sandmann G (May 2003). "Expression and biochemical characterization of the 1-HO-carotenoid methylase CrtF from Rhodobacter capsulatus". FEMS Microbiology Letters. 222 (2): 237–42. doi:10.1016/s0378-1097(03)00302-1. PMID 12770713.

[2] Pinta V, Ouchane S, Picaud M, Takaichi S, Astier C, Reiss-Husson F (May 2003). "Characterization of unusual hydroxy- and ketocarotenoids in Rubrivivax gelatinosus: involvement of enzyme CrtF or CrtA". Archives of Microbiology. 179 (5): 354–62. doi:10.1007/s00203-003-0538-3. PMID 12664193. S2CID 30048505.

[3] Scolnik PA, Walker MA, Marrs BL (March 1980). "Biosynthesis of carotenoids derived from neurosporene in Rhodopseudomonas capsulata". The Journal of Biological Chemistry. 255 (6): 2427–32. doi:10.1016/S0021-9258(19)85909-4. PMID 7358679.

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v t e Enzymes
Activity	Active site Binding site Catalytic triad Oxyanion hole Enzyme promiscuity Diffusion-limited enzyme Cofactor Enzyme catalysis
Regulation	Allosteric regulation Cooperativity Enzyme inhibitor Enzyme activator
Classification	EC number Enzyme superfamily Enzyme family List of enzymes
Kinetics	Enzyme kinetics Eadie–Hofstee diagram Hanes–Woolf plot Lineweaver–Burk plot Michaelis–Menten kinetics
Types	EC1 Oxidoreductases (list) EC2 Transferases (list) EC3 Hydrolases (list) EC4 Lyases (list) EC5 Isomerases (list) EC6 Ligases (list) EC7 Translocases (list)